The Midway Road bridge crossing Interstate 80 between Vacaville and Dixon is scheduled to be demolished next month and replaced over the next several months.

After that build is complete, the Meridian Road bridge crossing I-80, which connects Weber and North Meridian Roads, will temporarily close for seismic retrofitting.

Replacing the Midway bridge and upgrading the Meridian bridge will bring both crossings up to the most recent seismic safety standards, according to the California Department of Transportation (Caltrans).

According to the current project schedule, the Midway Road bridge will close at 7 a.m. May 18.

Starting at 11 p.m. May 20 and ending at 8 a.m. May 21, Caltrans and its contracted crew will be demolishing the bridge.

“Right now they’re hoping to do it in one night,” said Vince Jacala, public information officer for Caltrans District 4, which includes Solano County.

In order to complete the demolition that night, Interstate 80 will be closed in both directions under the bridge.

A detour onto the frontage roads will be in place.

While the new Midway Road bridge is being built over the following eight months, the Meridian Road bridge will be the general detour route.

Some work on the bridge will be done overnight, but some will be done during the day as well, Jacala said.

After the Midway Road bridge is complete, Caltrans will begin seismic retrofitting on the Meridian Road bridge. That work could begin this fall or next spring, depending on the weather.

The Meridian bridge will not be demolished.

Caltrans has met with the Sacramento Valley National Cemetery on Midway Road, Jacala added, which holds an average of 30 services a day with many visitors unfamiliar with the area.

The Meridian Road bridge will also be the general detour route for the cemetery.

Last year, the California Transportation Commission allocated $11,828,000 for both the Midway and Meridian Road bridge improvements, according to an August news release.

The current Midway Road bridge was built in the 1950s, Jacala said, and needs to be brought up to the latest safety standards.

When complete, the new bridge will have the same number of lanes, but will be a little taller and upgraded for resistance to earthquakes.

For more information, visit http://www.dot.ca.gov/d4/80midwaymeridianbridge.